AT&T 3B2/300 Product manual

NOTICE
The information in this document is subject to change without notice. AT&T assumes no responsibility for any errors that may
appear in this document.
Copyright© 1990
AT&T
All Rights Reserved
Printed in U.S.A.
~\
I
,)

C
-
TRADEMARKS
The following is a listing of the trademarks that are used in this manual:
• CENTRONICS -Registered trademark of Centronics Data Computer Corp.
•
Datakit -Registered trademark of AT&T
• FUJITSU -Registered
trademark of FUJITSU Limited, Nakahara-Ku, Kawasaki, Japan
• INTEL -Registered trademark of Intel Corp.
• MS-DOS -Registered
trademark of Microsoft Corp.
• Teletype -Registered
trademark of AT&T
• UNIX -Registered
trademark of AT&T
•
WE -Registered trademark of AT&T
• WREN -
Trademark of Control Data Corp.
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Customer Information Center
Attn: Customer Service Representative
P.O. Box 19901
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IN 46219

.. ·····--- ··----------------------
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Table of Contents
1.
2.
INTRODUCTION
INTRODUCTION . . . . . . . . . . . . . . . .
PURPOSE OF TECHNICAL REFERENCE MANUAL
MANUAL ORGANIZATION .
RELATED DOCUMENTATION .
EQUIPMENT DESCRIPTION
EQUIPMENT DESCRIPTION . .
SYSTEM (EQUIPMENT) CONFIGURATIONS
HARDWARE OVERVIEW . . . . . .
SYSTEM BOARDS . . . . . . . . . . . . .
RANDOM ACCESS MEMORY CARDS . . .
BACKPLANE BOARDS . . . . . . . . . . .
AUXILIARY DISK INTERFACE (ED-4C632-30)
DUART CONNECTOR-2 INTERFACE (ED-4C492-35,G5
and ED-4C631-35,G2) ............. .
CM195A NETWORK INTERFACE CARD
..... .
CM195AA ALARM INTERFACE CIRCUIT CARD
..
CM195AC/CM195AD "DATAKIT" VCS INTERFACE
CARD
............ .
CM195AE GPSC CARD PACKAGE
CM195AY EPORTS CARD
........... .
CM195B PORTS CARD
............ .
CM195BA PORTS CARD
............ .
CM195H CARTRIDGE TAPE CONTROLLER CARD
CM195K EXPANSION DISK CONTROLLER CARD
CM195T INTELLIGENT SERIAL CONTROLLER
CARD
............... .
CM195U STARLAN INTERFACE CARD
CM195W SCSI HOST ADAPTER CARD . . . . .
CM195Y EPORTS CARD
........... .
CM521A DIFFERENTIAL SCSI HOST ADAPTER
CARD
................ .
CM522A VCACHE CARD . . . . . . . .
CM524A PROCESSING ELEMENT CARD .
CM525B VMEbus CARD . . . . . . . . .
1-1
1-1
1-1
1-1
1-1
2-1
2-1
2-3
2-13
2-99
2-119
2-131
2-137
2-139
2-141
2-143
2-145
2-147
2-149
2-151
2-155
2-157
2-159
2-161
2-163
2-165
2-167
2-169
2-171
2-173
2-175
TABLE OF CONTENTS

Table of Contents
CM527A MULTIPROCESSOR ENHANCEMENT
~
CARD.
2-177
,.._I
FLOPPY DISK DRIVE (KS-23114,L4) 2-179
23-MEGABYTE CARTRIDGE TAPE DRIVE
(KS-23165,Ll) 2-183
60-MEGABYTE CARTRIDGE TAPE DRIVE
(KS-234l 7,L2) 2-187
120-MEGABYTE CARTRIDGE TAPE DRIVE
(KS-23465,LlA) 2-189
HARD DISK DRIVES . 2-191
POWER-EQUIPMENT DESCRIPTION . 2-207
MISCELLANEOUS EQUIPMENT AND APPARATUS 2-221
3. FUNCTIONAL DESCRIPTION 3-1
FUNCTIONAL DESCRIPTION 3-1
SYSTEM OVERVIEW . 3-1
SYSTEM BOARDS 3-31
RANDOM ACCESS MEMORY CARDS 3-139
BACKPLANES . 3-153
CM195A NETWORK INTERFACE CARD 3-165
~
CM195AA ALARM INTERACE CIRCUIT CARD . 3-175
,._,
CM195AC/CM195AD "DATAKIT" VCS INTERFACE
CARD.
3-183
CM195AE GPSC CARD 3-189
CM195AY EPORTS CARD 3-197
CM195B/CM195BA PORTS CARD 3-203
CM195H CARTRIDGE TAPE CONTROLLER CARD 3-209
CM195K EXPANSION DISK CONTROLLER CARD 3-215
CM195T INTELLIGENT SERIAL CONTROLLER
CARD.
3-223
CM195U STARLAN INTERFACE CARD 3-231
CM195W SCSI HOST ADAPTER CARD . 3-239
CM195Y EPORTS CARD . 3-247
CM521A DIFFERENTIAL SCSI HOST ADAPTER CARD 3-253
CM522A VCACHE CARD 3-261
CM524A PROCESSING ELEMENT CARD . 3-265
CM525B VMEbus CARD 3-271
,.......,,
""-1111'
ii TECHNICAL REFERENCE MANUAL

C
---------------------Table of Contents
CM527A MULTIPROCESSOR ENHANCEMENT
CARD
................ .
FLOPPY DISK DRIVE . . . . . . . . . . . . .
23-MEGABYTE CARTRIDGE TAPE DRIVE . . .
60-MEGABYTE SCSI CARTRIDGE TAPE
DRIVE.
120-MEGABYTE SCSI CARTRIDGE TAPE DRIVE
AT&T SCSI REWRITABLE OPTICAL DISK DRIVE
HARD DISK DRIVES . . . . . . . . . .
POWER-FUNCTIONAL DESCRIPTION ...
Appendix A:
Appendix B:
Index
.....
VIRTUAL ADDRESS SP ACE
CONNECTOR AND CABLING
INFORMATION.
3-277
3-283
3-287
3-291
3-295
3-299
3-301
3-303
A-1
B-1
IN-1
TABLE OF CONTENTS iii

Table of Contents-----------------------------
iv TECHNICAL REFERENCE MANUAL

List of Figures
C Figure 2-1: Domestic
382/300 Computer Cabinet Assembly Drawing (ED-4C492-30) 2-15
Figure 2-2: International
382/300 Computer Cabinet Assembly Drawing
(ED-4C560-30) . 2-19
Figure 2-3: Domestic
382/310 Computer Cabinet Assembly Drawing (ED-4C645-30) 2-23
Figure 2-4: International
382/310 Computer Cabinet Assembly Drawing
(ED-4C646-30) . 2-27
Figure 2-5: Domestic
382/400 Computer Cabinet Assembly Drawing (ED-4C631-30) 2-31
Figure 2-6: International
382/400 Computer Cabinet Assembly Drawing
(ED-4C638-30) . 2-35
Figure 2-7:
382/500 Computer Cabinet Assembly Drawing (ED-3T043-30) 2-39
Figure 2-8:
382/600 Computer Cabinet Assembly Drawing (ED-3T023-30) 2-43
Figure 2-9:
382/700 Computer Cabinet Assembly Drawing (ED-3T047-30) 2-47
Figure 2-10:
382/1000 Computer Cabinet Assembly Drawing (ED-3T056-30) 2-51
Figure 2-11: Domestic AT&T/XM Cabinet Assembly
Drawing (ED-4C580-30) 2-55
Figure 2-12: International AT&T/XM Cabinet Assembly Drawing (ED-4C635-30) 2-59
Figure 2-13: Domestic AT&T
XM/405S/900S Cabinet Assembly Drawing
(ED-3
TO 10-30) 2-63
Figure 2-14: International AT&T
XM/405S/900S Cabinet Assembly Drawing
(ED-3T027-30) 2-67
Figure 2-15: AT&T
DCM/4E Cabinet Assembly Drawing (ED-3T011-30,Gl) 2-71
Figure 2-16: AT&T DM Cabinet Assembly Drawing (ED-3T011-30,G2, G3, GS, G6) 2-75
Figure 2-17: AT&T
DM/S or DM/DS Cabinet Assembly Drawing (ED-3T011-30,G8, G9,
Gll)
2-79
Figure 2-18: AT&T SCSI Rewritable Optical Disk Cabinet Assembly Drawing 2-83
Figure 2-19: SCSI Manual-Loading 9-Track Tape Cabinet 2-87
,-
Figure 2-20: SCSI Autoloading 9-Track Tape Cabinet 2-88
... .__..,
Figure 2-21: AT&T SCSI TM Cabinet Assembly Drawing (ED-3T011-30,G4, G7) 2-91
Figure 2-22: AT&T
PPCU Cabinet Assembly Drawing (ED-3T011-30,G10) 2-97
Figure 2-23: CM190A System Board Layout (Discontinued Availability) 2-101
Figure 2-24: System Board, ED-4C637-30 Layout 2-105
Figure 2-25: CM518A System Board Layout 2-109
Figure 2-26: CM518B System Board Layout 2-113
Figure 2-27: CM518C System Board Layout 2-117
Figure 2-28: CM191A 0.25-Megabyte RAM
Card Layout 2-121
Figure 2-29: CM191B
I-Megabyte RAM Card Layout 2-122
Figure 2-30: CM191C I-Megabyte, Surface Mounted, RAM
Card Layout 2-123
Figure 2-31: CM191D 2-Megabyte, Surface Mounted, RAM
Card Layout 2-124
Figure 2-32: CM192B 2-Megabyte RAM
Card Layout 2-125
Figure 2-33: CM523A 4-Megabyte, Surface Mounted, RAM
Card Layout 2-126
Figure 2-34: CM523AA 4-Megabyte, Surface Mounted, RAM
Card Layout 2-127
Figure 2-35: CM523B 2-Megabyte, Surface Mounted, RAM
Card Layout 2-128
Figure 2-36: CM523D 16-Megabyte, Surface Mounted, RAM
Card Layout 2-129
Figure 2-37:
CMl 93A/B Backplane Board Layout 2-131
Figure 2-38:
CMl 948 Backplane Board Layout 2-132
Figure 2-39: CM519A Backplane Board Layout 2-133
Figure 2-40: CMS198 Backplane Board Layout 2-134
Figure 2-41: CM520A Backplane Board Layout 2-135
Figure 2-42: Auxiliary Disk Interface, ED-4C632-30, Layout 2-138
Figure 2-43: DUART Connector-2 Interface, ED-4C492-30,GS
(382/300/310) and
ED-4C631-35,G2 (382/400) Layout 2-140
Figure 2-44:
CMl 95A NI Card Layout 2-142
,,-
Figure 2-45:
CMl 95AA AIC Layout 2-144
."-"
LIST OF FIGURES v

List of Figures
Figure 2-46:
CM195AC/CM195AD Datakit VCS Interface Card Layout 2-146
Figure 2-47: CMl 95AE GPSC Card Layout 2-148
~
Figure 2-48: CMl 95AY EPORTS Card Layout . 2-150
Figure 2-49:
CMl 95B PORTS Card Layout (Early Production) 2-152
Figure 2-50: CM195B-7 PORTS
Card Layout 2-153
Figure 2-51:
CMl 95BA PORTS Card Layout 2-156
Figure 2-52:
CM195H CTC Card Layout 2-158
Figure 2-53:
CMl 95K XDC Card Layout 2-160
Figure 2-54:
CMl 95T ISC Card Layout 2-162
Figure 2-55:
CMl 95U STARLAN Interface Card Layout 2-164
Figure 2-56: CM195W SCSI
Host Adapter Card Layout 2-166
Figure 2-57:
CMl 95Y EPORTS Card Layout 2-168
Figure 2-58: CM521A Differential SCSI
Host Adapter Card Layout 2-170
Figure 2-59: CM522A VCACHE
Card Layout 2-172
Figure 2-60: CM524A PE
Card Layout 2-174
Figure 2-61: CM525B VMEbus
Card Layout 2-176
Figure 2-62: CM527A MPE
Card Layout 2-178
Figure 2-63: Version 2
Computer Backup Battery Supply Layout 2-218
Figure 2-64:
3B2/500 Computer Backup Battery Supply Position 2-219
Figure 2-65:
3B2/600, 700, and 1000 Computer Backup Battery Supply Position 2-220
Figure 3-1: Version 2
Computer-High-Level Functional Block Diagram 3-3
Figure 3-2: Version 3
Computer-High-Level Functional Block Diagram
3-7
Figure 3-3: Version 2
Computer Address Spectrum 3-10
Figure 3-4: Version 3
Computer Address Spectrum 3-11
Figure 3-5:
Input/Output Bus Signals 3-14
Figure 3-6:
System Board Peripheral Controller Read Operation 3-18
Figure 3-7:
System Board Peripheral Controller Write Operation 3-20
~
Figure 3-8: Peripheral Controller Main Memory Read Operation 3-22
~
Figure 3-9: Peripheral Controller Main
Memory Write Operation 3-24
Figure 3-10: Self-Configuration-
Powerup Sequence 3-27
Figure 3-11: Self-Configuration-
Manual Boot Sequence 3-28
Figure 3-12: Self-Configuration Process 3-30
Figure 3-13: Version 2 3B2
Computer System Board-Functional Block Diagram 3-33
Figure 3-14:
System Board CPU-Functional Block Diagram 3-36
Figure 3-15: WE 32101 MMU Interconnection Diagram 3-44
Figure 3-16:
WE 32101 MMU Block Diagram 3-45
Figure 3-17: MMU Internal Address
Spectrum 3-51
Figure 3-18: Virtual Address to Physical Address Translation for Contiguous Segments 3-53
Figure 3-19: Virtual Address to Physical Address Translation for
Paged Segments 3-54
Figure 3-20:
WE 32106 Math Acceleration Unit-Functional Block Diagram 3-56
Figure 3-21:
Chip Select and Control Signals Address Decode 3-64
Figure 3-22: Version 2 System Board CSR Bit Assignments 3-68
Figure 3-23:
System Board Interrupt Assignments 3-70
Figure 3-24:
Dual Port Dynamic Random Access Memory Controller-Functional Block
Diagram 3-74
Figure 3-25:
Data Byte Selection Summary . 3-77
Figure 3-26: Direct
Memory Access Subsystem-Functional Block Diagram 3-79
Figure 3-27: Version 3 3B2
Computer System Board-Functional Block Diagram 3-87
Figure 3-28:
CM518B/C System Board CPU-Functional Block Diagram 3-90
Figure 3-29: WE 32201 MMU Interconnection Diagram 3-98
Figure 3-30:
MMU Internal Address Spectrum 3-104
Figure 3-31: Virtual Address to Physical Address Translation for
Paged Segments 3-106
Figure 3-32:
WE 32206 Math Acceleration Unit-Functional Block Diagram . 3-108
~
.....,,
vi TECHNICAL REFERENCE MANUAL

List of Figures
Figure 3-33:
Chip Select and Control Signals Address Decode 3-118
C Figure 3-34: Version 3 System Board CSER Bit Assignments 3-122
Figure 3-35: Version 3 System Board Interrupt Assignments 3-124
Figure 3-36: Dynamic
Random Access Memory Controller-Functional Block Diagram 3-128
Figure 3-37:
Data Byte Selection Summary . 3-131
Figure 3-38: Direct
Memory Access Subsystem-Functional Block Diagram 3-133
Figure 3-39: CM191A 0.25-Megabyte RAM
Card-Functional Block Diagram 3-140
Figure 3-40: CM191B 1-Megabyte RAM
Card-Functional Block Diagram 3-141
Figure 3-41: CM191C 1-Megabyte, Surface Mounted, RAM
Card-Functional Block
Diagram 3-142
Figure 3-42: CM191D 2-Megabyte, Surface Mounted, Full Height, RAM Card-
Functional Block Diagram 3-143
Figure 3-43:
CMl 92B 2-Megabyte, Surface Mounted, Half Height, RAM Card-
Functional Block Diagram 3-144
Figure 3-44: CM523A 4-Megabyte RAM
Card-Functional Block Diagram 3-147
Figure 3-45: CM523AA 4-Megabyte RAM
Card-Functional Block Diagram 3-148
Figure 3-46: CM523B 2-Megabyte RAM
Card-Functional Block Diagram 3-149
Figure 3-47: CM523D 16-Megabyte RAM
Card-Functional Block Diagram . 3-150
Figure 3-48:
CM193A/B (382/300 and 310) Backplane-Functional Block Diagram 3-155
Figure 3-49: CM194B (3B2/400)
Backplane-Functional Block Diagram 3-157
Figure 3-50: CM519A (3B2/600
and 700) Backplane-Functional Block Diagram 3-159
Figure 3-51: CM519B (3B2/1000)
Backplane-Functional Block Diagram 3-161
Figure 3-52: CM520A (3B2/500)
Backplane-Functional Block Diagram 3-163
Figure 3-53: CM195A NI
Card-Functional Block Diagram 3-166
Figure 3-54:
CMl 95A NI Card Address Map
3-168
Figure 3-55:
CMl 95AA AIC Card-Functional Block Diagram 3-176
...-,
Figure 3-56: CM195AA AIC Card Address Spectrum 3-177
,.
Figure 3-57: CM195AC/CM195AD Datakit VCS Interface Card-Functional Block
~
Diagram 3-184
Figure 3-58: CM195AC Processing Unit
Card Address Map
3-185
Figure 3-59: CM195AE GPSC
Card-Functional Block Diagram 3-190
Figure 3-60:
CMl 95AE GPSC Card Address Map
3-192
Figure 3-61: CM195AY EPORTS
Card-Functional Block Diagram 3-198
Figure 3-62: CM195AY EPORTS Card Address
Map
3-200
Figure 3-63: CM195B/CM195BA PORTS
Card-Functional Block Diagram 3-204
Figure 3-64: CM195B/CM195BA PORTS Card Address
Map . 3-206
Figure 3-65:
CMl 95H CTC Card-Functional Block Diagram 3-210
Figure 3-66: CM195H CTC
Card Address Map
3-212
Figure 3-67: CM195K XDC
Card-Functional Block Diagram 3-216
Figure 3-68: CM195K XDC
Card Address Map
3-218
Figure 3-69: CM195T ISC
Card-Functional Block Diagram 3-224
.Figure 3-70: CM195T ISC Card Address
Map
3-226
Figure 3-71: CM195U STARLAN Interface
Card-Functional Block Diagram 3-232
Figure 3-72: CM195U STARLAN Interface Card Address
Map
3-234
Figure 3-73: CM195W SCSI
Host Adapter Card-Functional Block Diagram 3-240
Figure 3-74:
CMl 95W SCSI Host Adapter Card Address Map
3-242
Figure 3-75:
CMl 95Y EPORTS Card-Functional Block Diagram 3-248
Figure 3-76:
CMI 95Y EPORTS Card Address Map
3-250
Figure 3-77: CM521A Differential SCSI
Host Adapter Card-Functional Block Diagram 3-254
Figure 3-78: CM521A Differential SCSI
Host Adapter Card Address Map
3-256
Figure 3-79: CM522A VCACHE
Card-Functional Block Diagram 3-262
Figure 3-80: CM522A VCACHE
Card Address Map . 3-263
,,,,-..
Figure 3-81: CM524A PE Card-Functional Block Diagram 3-266
'-"'
LIST OF FIGURES vii

List of Figures
Figure 3-82: CM524A PE
Card Address Map
3-267
Figure 3-83: CM525B VMEbus
Card-Functional Block Diagram 3-272
~ Figure 3-84: CM525B VMEbus
Card Address Map . 3-273
Figure 3-85: CM527A MPE
Card-Functional Block Diagram 3-278
Figure 3-86: CM527A MPE Card Address Map 3-279
Figure 3-87: Floppy Disk Physical Layout 3-283
Figure 3-88: Floppy Disk
Drive-Functional Block Diagram 3-285
Figure 3-89: Cartridge Tape Physical Layout . 3-287
Figure 3-90: 23-Megabyte Cartridge Tape
Drive-Functional Block Diagram 3-289
Figure 3-91: 60-Megabyte Cartridge Tape Physical Layout 3-291
Figure 3-92: 60-Megabyte Cartridge Tape
Drive-Functional Block Diagram 3-293
Figure 3-93: 120-Megabyte Cartridge Tape Physical Layout 3-295
Figure 3-94: 120-Megabyte Cartridge Tape
Drive-Functional Block Diagram 3-297
Figure 3-95: SCSI Rewritable Optical Disk
Drive-Functional Block Diagram 3-300
Figure 3-96:
382/300 or 310 Computer and AT&T/XM Power-Functional Block
Diagram 3-304
Figure 3-97:
382/400 Computer and AT&T/XM Power-Functional Block Diagram 3-305
Figure 3-98:
382/300 and 310 Computer Power Supply-Functional Block Diagram 3-308
Figure 3-99:
382/400 Computer Power Supply-Functional Block Diagram 3-309
Figure 3-100:
382/500 Computer Power Supply-Functional Block Diagram 3-311
Figure 3-101:
382/600 and 700 Computer Power Supply-Functional Block Diagram 3-312
Figure 3-102:
382 Power Supply for Embedded SCSI- Functional Block Diagram 3-313
Figure 3-103: 382
Computer Backup Battery Supply-Functional Block Diagram 3-316
Figure 3-104:
AT&T/XM Power Supply-Functional Block Diagram 3-318
Figure 3-105: AT&T
XM/405S/900S Power Supply-Functional Block Diagram 3-319
Figure A-1: Virtual Address Space Sections A-1
Figure A-2: Virtual Address Space-Section 0 A-2
,.......,,,
Figure A-3: Virtual Address Space-Section 1 A-3 •
Figure A-4: Virtual Address Space-Section 2 A-3 ._,
Figure A-5: Virtual Address Space-Section 3 A-4
Figure A-6: Paging Virtual Address
Map (Minimum Configuration) A-4
Figure B-1:
CMl 90A System Board Layout B-5
Figure
B-2: System Board, ED-4C637-30 Layout B-7
Figure
B-3: CM518A System Board Layout B-25
Figure B-4: CM518B System Board Layout B-27
Figure
B-5: CM518C System Board Layout B-29
Figure
B-6:
CM191A 0.25-Megabyte Memory Card Layout B-43
Figure
B-7: CM191B I-Megabyte Memory Card Layout B-45
Figure
B-8:
CM191C I-Megabyte, Surface Mounted, Memory Card Layout B-47
Figure
B-9: CM191D 2-Megabyte, Surface Mounted, Memory Card Layout B-49
Figure B-10:
CMl 928 2-Megabyte, Surface Mounted, Memory Card Layout B-51
Figure B-11: CM523A 4-Megabyte Memory
Card Layout B-57
Figure B-12: CM523AA 4-Megabyte Memory
Card Layout B-59
Figure B-13: CM523B 2-Megabyte Memory
Card Layout B-61
Figure B-14: CM523D 16-Megabyte Memory
Card Layout B-63
Figure B-15:
CMl 93A/B Backplane Layout B-69
Figure B-16:
CMl 948 Backplane Layout B-71
Figure B-17: CM519A Backplane Layout 8-81
Figure B-18: CM519B Backplane Layout B-83
Figure B-19: CM520A Backplane Layout B-85
Figure B-20:
CMl 95A NI Card Layout . 8-111
Figure B-21:
CMl 95AA AIC Card Layout B-119
Figure B-22:
CMl 95AC/CM195AD Datakit VCS Interface Card Layout B-127
~
~
viii TECHNICAL REFERENCE MANUAL

List of Figures
Figure B-23:
CMl 95AE GPSC Card Layout B-137
C Figure B-24:
CMl 95AY /CMl 95Y EPORTS Card Layout B-145
Figure B-25: CM195B/CM195BA PORTS
Card Layout B-153
Figure B-26:
CMl 95H CTC Card Layout B-161
Figure B-27:
CMl 95K XDC Card Layout B-169
Figure B-28: CM195T ISC
Card Layout B-179
Figure B-29: CM195U STARLAN Interface
Card Layout B-187
Figure B-30:
CMl 95W SCSI Host Adapter Card Layout B-195
Figure B-31: CM521A Differential SCSI Host Adapter
Card Layout B-203
Figure B-32: CM522A VCACHE
Card Layout B-211
Figure B-33: CM524A PE
Card Layout B-217
Figure B-34: CM525B VMEbus
Card Layout B-223
Figure B-35: CM527A MPE
Card Layout B-235
Figure B-36: CONSOLE, CONTTY,
and PORTS 8-Pin Modular Jacks Pin Identification B-239
Figure B-37:
ACU/MODEM Connector (232-21-25-005) Pin Identification B-240
Figure B-38:
Terminal/Printer Female Connector (232-22-25-006) Pin Identification B-241
Figure B-39:
Terminal/Printer Male Connector (232-21-25-010) Pin Identification B-242
Figure B-40: Remote Console Male Connector (232-21-25-008) Pin Identification B-243
Figure B-41: PORTS Loop
Around Connections B-244
Figure B-42: 8-Conductor Modular Cable Connector
Pin Identification B-246
Figure B-43: CENTRONICS Connectorized Cable Pin Identification B-247
LIST OF FIGURES ix

-----~----------.,,--. ·-,----·---------·------
C
Chapter 1: INTRODUCTION
INTRODUCTION
PURPOSE OF TECHNICAL REFERENCE MANUAL
MANUAL ORGANIZATION
RELATED DOCUMENTATION . . . . . . . .
TABLE OF CONTENTS
1-1
1-1
1-1
1-1

C
INTRODUCTION
PURPOSE OF TECHNICAL REFERENCE MANUAL
This manual is intended for use by a sophisticated user, an Original Equipment Manufacturer
(OEM),
or a Value Added Retailer (VAR) who need physical and functional information on the AT&T
3B2
computer series (300, 310, 400, 500, 600, 700, and 1000) and associated peripheral add-ons.
MANUAL ORGANIZATION
This manual is structured so you can easily find information without having to read the entire text.
The remainder of this manual is organized as follows.
•
Chapter 2, "EQUIPMENT DESCRIPTION," is a hardware-oriented physical description of the
3B2 computers and peripherals.
•
Chapter 3, "FUNCTIONAL DESCRIPTION," describes how the 3B2 computer operates. The
peripherals operation and important information is also given.
•
Appendix A, "VIRTUAL ADDRESS SP ACE," gives the virtual memory address spectrum for the
3B2 computer.
• Appendix B, "CONNECTOR AND CABLING INFORMATION," provides card signal and
connector information.
RELATED DOCUMENTATION
Other documents for OEM/VAR use are the following:
Crash Analysis Guide
This guide describes the use of the crash command to examine the UNIX® system
memory images following a system panic.
Feature Card Interface Design Manual
This manual provides the information necessary to design a feature card for the
3B2 computer. Detailed information is provided on the Input/Output (1/0) bus.
Error Message Manual
This manual contains error message descriptions and recommended actions for the
various 3B2 computer error messages.
Off-Line Diagnostics Manual
This manual describes the diagnostic phases and gives test descriptions for all
3B2
computer and feature card diagnostics.
Driver Design Guide
This guide provides information for creating device drivers. Descriptions include
firmware interfaces,
how to write a block and character device driver, and how to
install a driver.
Application Software Packaging Guide
This guide identifies the requirements, guidelines, and templates for developers to
use when creating software applications for inexperienced end users.
INTRODUCTION 1-1

Chapter 2: EQUIPMENT DESCRIPTION
.~
\..., EQUIPMENT DESCRIPTION 2-1
SYSTEM (EQUIPMENT) CONFIGURATIONS 2-3
Computer Models 2-3
Minimum 382 Computer Equipment Configuration 2-6
Maximum 382 Computer Equipment Configuration 2-7
Add-On Features 2-8
HARDWARE OVERVIEW . 2-13
Domestic 382/300 Computer Cabinet (ED-4C492-30) 2-13
International 382/300 Computer Cabinet (ED-4C560-30) 2-17
Domestic 382/310 Computer Cabinet (ED-4C645-30) 2-21
International 382/310 Computer Cabinet (ED-4C646-30) 2-25
Domestic 382/400 Computer Cabinet (ED-4C631-30) 2-29
International 382/400 Computer Cabinet (ED-4C638-30) 2-33
382/500 Computer Cabinet (ED-3T043-30) 2-37
382/600 Computer Cabinet (ED-3T023-30) 2-41
382/700 Computer Cabinet (ED-3T047-30) 2-45
382/1000 Computer Cabinet (ED-3T056-30) 2-49
Domestic AT&T/XM (ED-4C580-30) 2-53
International AT&T/XM (ED-4C635-30) . 2-57
Domestic AT&T XM/405S/900S (ED-3T010-30) 2-61
International AT&T XM/405S/900S (ED-3T027-30) 2-65
AT&T Disk Controller Module/4E (ED-3T011-30,Gl) 2-69
AT&T Disk Module (ED-3T011-30,G2, G3, GS, G6) . 2-73
AT&T Embedded Disk Modules (ED-3T011-30,G8, G9, Gll)
2-77
,,-... AT&T SCSI Rewritable Optical Disk Module 2-81
AT&T SCSI 9-Track Tape 2-85
~
AT&T SCSI Tape Module (ED-3T011-30,G4, G7) 2-89
AT&T Cartridge Tape Module 2-93
AT&T Peripheral Power Control Unit (ED-3T011-30,G10) 2-95
SYSTEM BOARDS 2-99
CMl 90A System Board 2-99
ED-4C637-30 System Board 2-103
CM518A System Board 2-107
CM518B System Board 2-111
CM518C System Board 2-115
RANDOM ACCESS MEMORY CARDS 2-119
Memory Card Types 2-119
RAM Equipage Considerations 2-120
CM191A 0.25-Megabyte RAM Card
2-121
CM191B 1-Megabyte RAM Card
2-122
CM191C 1-Megabyte RAM Card
2-123
CM191D 2-Megabyte RAM Card
2-124
CM192B 2-Megabyte RAM Card
2-125
CM523A 4-Megabyte RAM Card
2-126
CM523AA 4-Megabyte RAM Card
2-127
CM523B 2-Megabyte RAM Card
2-128
CM523D 16-Megabyte RAM Card . 2-129
BACKPLANE BOARDS 2-131
Backplane Types 2-131
CM193A/B, 382/300/310 Computer Backplane Board 2-131
.~
CM194B, 382/400 Computer Backplane Board 2-132
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TABLE OF CONTENTS

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Chapter 2: EQUIPMENT DESCRIPTION---------------------
CM519A Backplane Board Layout
CM519B Backplane Board Layout
CM520A Backplane Board Layout
AUXILIARY DISK INTERFACE (ED-4C632-30) .
DUART CONNECTOR-2 INTERFACE (ED-4C492-35,G5
and ED-4C631-35,G2)
CM195A NETWORK INTERFACE CARD
..... .
CM195AA ALARM INTERFACE CIRCUIT CARD . . . .
CM195AC/CM195AD "DATAKIT" VCS INTERFACE CARD
CM195AE
GPSC CARD PACKAGE
CMl 95AY EPORTS CARD
CMl 95B PORTS CARD . . . .
CMl 95BA PORTS CARD . . . .
CM195H CARTRIDGE TAPE CONTROLLER CARD
CMl 95K EXP ANSI ON DISK CONTROLLER CARD
CM195T INTELLIGENT SERIAL CONTROLLER CARD
CM195U STARLAN INTERFACE CARD
CM195W SCSI
HOST ADAPTER CARD . . . . . .
CM195Y EPORTS CARD . . . . . . . . . . .
CM521A DIFFERENTIAL SCSI HOST ADAPTER CARD
CM522A VCACHE CARD . . . . .
CM524A PROCESSING ELEMENT CARD . . . . .
CM525B VMEbus CARD . . . . . . . . . . .
CM527A MULTIPROCESSOR ENHANCEMENT CARD
FLOPPY DISK DRIVE (KS-23114,L4)
Floppy Disk Drive Use . . . . . . .
Floppy Disk Partitions . . . . . . . .
Floppy Disk Drive
Equipment Characteristics
23-MEGABYTE CARTRIDGE TAPE DRIVE (KS-23165,Ll)
Cartridge
Tape Use . . . . . . . . . . . .
Cartridge Tape Partitioning . . . . . . . . .
Cartridge Tape Drive
Equipment Characteristics . .
60-MEGABYTE CARTRIDGE TAPE DRIVE (KS-23417,L2)
60-Megabyte Cartridge Tape Drive
Equipment Characteristics
120-MEGABYTE CARTRIDGE TAPE DRIVE (KS-23465,LlA) . .
120-Megabyte Cartridge Tape Drive
Equipment Characteristics
HARD DISK DRIVES . . . . . . . . . .
Seagate IO-Megabyte
Hard Disk (KS-23034,Ll)
WREN 30-Megabyte
Hard Disk (KS-23054,Ll)
FUJITSU 72-Megabyte
Hard Disk (KS-23054,L2)
WREN
II 72-Megabyte Hard Disk (KS-23054,L2)
94-Megabyte
Hard Disk (KS-23371,L7) .
147-Megabyte
Hard Disk (KS-23371,L17)
155-Megabyte
Hard Disk (KS-23483,L25)
300-Megabyte
Hard Disk (KS-23483,LlB or LllB)
300-Megabyte Hard Disk (KS-23483,L3) . . .
300-Megabyte
Hard Disk (KS-23371,L31)
600-Megabyte
Hard Disk (KS-23483,LS or US)
600-Megabyte Hard Disk (KS-23483,L7 or L17)
POWER-EQUIPMENT DESCRIPTION . . . .
Domestic
3B2/300 and 310 Computers Power Supply, #095-10011-XXl and
#095-10060-00 . . . . . . . . . . . . . . . . . . . .
382/300 and 310 Computers International Power Supply, #095-10011-XX2 and
#095-10061-00 . . . . . . . . . . . . . . . . . . . . .
ii TECHNICAL REFERENCE MANUAL
2-133
2-134
2-135
2-137
2-139
2-141
2-143
2-145
2-147
2-149
2-151
2-155
2-157
2-159
2-161
2-163
2-165
2-167
2-169
2-171
2-173
2-175
2-177
2-179
2-179
2-180
2-181
2-183
2-183
2-184
2-185
2-187
2-187
2-189
2-189
2-191
2-191
2-193
2-195
2-197
2-199
2-200
2-201
2-202
2-203
2-204
2-205
2-206
2-207
2-207
2-208